Electric illuminating-body.



G. WEISSMANN.

ELECTRIC ILLUMINATING BODY.

APPLIOLTIOH mum Inn. 20, 1911.

Patented Dec. 17, 1912.

2 SHEETS-1112 1.

G. WEISSMANN.

ELECTRIC ILLUMINATING BODY.

APPLICATION FILED FEB. 20, 1911.

Patented Dec. 17,1912.

2 SHEETS-SHEET 2.

UNITED eesravn 'w'msam, or amen.

nnno'rmc mnma'rrne-nonx.

Specification 01 Letters htent.

Patented Dec. 17, 1912.

Application tiled February 80, 1811. Serial No. 609,769.

To all whom it may concern:

Be it known that I, Gos'ravn Wmssmnx, a citizen of the French Republic, and res!- dent of Paris, France, have invented certain new and useful Improvements in Electric Illuminating-Bodies, of which the following is a specification.

he construction of electric illumlnatmg bodies and particularly of electric signs offers a great many difliculties of which the followin are the principal ones 1.--It 1s difiicult to insure the tightness of the holders in which the caps of the lamps are mounted; in any case this required tightness could be obtained only in considerably increasing the cost of manufacture. The moisture which collects and condenses in a holder produces the oxidation of the metallic parts and determines short-circuits as the poles are verg close to ether.

2.If the olders, 0 which a great many are required for one sign, are united by means of the metal plates cut out according to the outlines of the sign and which serve for conducting the current, it becomes extremely diflicult to fix the eyes or other means b which the sign is to be sus nded. \Vith this object in view insulated b0 ts have to be fixed in both metal plates and these insulated bolts are designed to support very heavy loads, wherefrom results, as all the insulating means break very easily, frequent breakage of the insulators and consequently short-circuits or ground connections.

3.It is necessary to put the si s toether at the works wherefrom resu t great ifliculties of transport. A further inconvenience is that the painting or enameling can be made only after the sign has been put together. The puttin together of the signs requires however t e use of wood fiber or of some such material, so that it is not possible to heat the apparatus to a suflicient degree for obtaining a good enamelin of the outer plates of the sign. The said ates therefore have to be simply painted the paint to be heated at the utmost to 80 C., so that it very quickly deteriorates.

The present invention has for its purpose to obviate these inconveniences; it is essentially characterized by a holder of special shape which permits absolute tightness and a rapid putting together of the sign, as the outer metal lates are not used as current conductors hey can be exposed to a very high de of temperature in order to be enamele The outer metal parts which correspond in shape to the si serve for protecting the electric parts. The improved luminous signs are cheap to manufacture. The improved signs are composed of parts easy to put together and to take to pieces an adapted to be used several times.

In the accompanying drawings the invention is shown by way of example.

Figure 1 is a front view of a holder. Fig. 2 is a side view of the same. Fig. 3 is a plan view of Fig. 1. Fig. 4 is a section on ine A-B of Fi 3 the socket of the incandescent electric Famp being shown in elevation. Figs. 5, 6 and 7 show modifications. Figs. 8 and 9 show, b way of example, part of a si made aocor ing to this invention.

As as been said in the introduction to the specification this invention is articularly characterized by the s ecial 3 laps of the lamp holder. T is hol er has preferably the sha e of a cube a made of insulating materia Extensions 6 and 0 project from the upper and lower surface respectively of the cube a. These extensions are ring shaped and their centers are situated in the vertical axis of the cube a. The holder (1 has a central borin d. The holder a has at least two slots e, which are perendicular to the central boring and paralel with each other, the two slots being separated by a suflicient thickness of the insulating material of the holder. The said slots starting from one of the sides of the cube a reach at least to the central boring d; they are designed to receive the conductors for the current. The ring shaped extensions I), are designed to penetrate into corres ending openings of the outer metal plates w ich are out out according to the shape of the sign. As shown in Fig. 4 the said extensions 1), c are placed in openin of the plates h, The conductors for t e current Consist of two strips in, m of conducting material which are inserted in the slots e and f.

With the holder shown in Figs. 1 to 6 the lower stri m is continuous and the upper strip is as a hole which is threaded in order to receive the threaded part of the cap of the lamp g. The strip It is pushed into the slot a so that its hole coincides with the central boring d of the holder. If the cap of the lamp 9 is screwed in it can be screwed until its end comes in contact with the two strips and-m have only to be connected with a source of electricity. 7 It is: obvious that this holder is absolutel tight as after the insertion of the .con uct ng strips k and m all the jointscan merited. .The conductin strips 10 and m are completely insulate from the outer plates h and 2'. These latter are united the one with the other by screws, bolts or by any other convenient means.

he suspension of'the sign on a walLdoes notofl'er any difliculty whatsoever.

The slots e and insteadof reaching from one side of the ho der a to'the opposite side, can adopt in the holder any suitable direction :for examegle as shown in Fig. 6, the can be arrang at right angles the one wit regard to the other, that is to say, the slot be ins on one side and terminates in the adiacent side, forming thus an elbow in the ho der a. It is not necessary that the two ends of the slots .be situated in the same plane. -According to Fig. 6 the one of the slots is arranged at an angle of 45 with re ard to the other slot.

he conducting strips can be .fixed in the holders by means of ins a or in any other suitablemanner sai pins being made of insulating material The conducting strips k and .m can be of any suitable length so as to traverse a certam number of holders. They can however be of such a length that they connect two holders a; in this case they form a kind of chain .link having a hole at each end, all the conducting strips formin a chain the links of which are connected y the holders a. In this case it would be preferable to use holders in which the entrance slots and the outlet slots are situated at diil'erent heights as shown in Fig. 7. The conducting strips k and m have holes without threading but the conducting strips in and m are threaded in order to receive the two threaded rings n and 0 which serve at the same time for connecting the strips k and m with the strips Ia and m and for rmeiving the double thread of the cap of the I igs. 8 and 9 show by way of example the manner of connecting several holders in which the conducting strip is is bent rebe cc- It 'is. evident that the improved elastic luminous signs according to this invent-ion can be constructed with double faces.

1. A holder for incandescent electric lamps comprising in combination, a holder body of insulating material having an axial opening, circular extensions on the frontand rear surfaces of said holder body and a plurality of slots intersecting sai axial opening, a front plateof suitable material having holes to receive said front extensions, a rear plateof suitable material having holes :to receive said rear extensions, a current conductor inserted in each of the slots of said holder body, at least one of said conductors being interrupted at the axial opening of theliolder, an incandescent lam having its threaded cap screwed into sai holder body to connect with said interrupted conductor and having its other terminal contacting with the other conductor and vmeans for connecting said front and rear plates substantially as described and ehowuand tor the purpose set forth.

2. A holder for incandescent electric lamps comprising incombination, a holder body of insulatingmaterial having an axial opening, circular extensions on the front and rear surfacesof said holder body and a plurality of slots intersectin said axial opening, plates of sheet metal avmg holes to receive said extensions, a current conductor inserted in the lower slots of said holder body, and a current conductor inserted in the upper slots of said holder body and having a threaded hole registering witlrt-he said axial opening of the holder bod an incandescent lam havin its threade cap inserted into sai holder 0d and screwed into the threaded holes of tie upper conductor and havin its other terminal in elec trical contact with the other conductor, and means for connecting said front and rear plates, substantiall as described.

In witness whereof have hereunto set my hand in the resence of two witnesses.

GU TAVE WEISSMANN.

Witnesses:

Dam B. Mason, ALBERT or. Cansamns.

(iepioe of thin patent may be obtained for the cents each, by addressing the Commissioner of Patents. Washington, D. 0." 

